Search found 70 matches

by Matt Sanruk 2H
Wed Jan 15, 2020 11:06 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Ice Box
Replies: 4
Views: 14

Ice Box

For ICE box, would the given concentrations always be a negative change?
by Matt Sanruk 2H
Wed Jan 15, 2020 11:03 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Ka and Kb
Replies: 5
Views: 11

Re: Ka and Kb

It is similar to the relationship between pOH and pH
by Matt Sanruk 2H
Wed Jan 15, 2020 11:00 pm
Forum: Ideal Gases
Topic: PV=nRT equation manipulation
Replies: 12
Views: 55

Re: PV=nRT equation manipulation

Oh, I see this manipulation can come in handy whenever we are given these circumstances thanks.
by Matt Sanruk 2H
Wed Jan 15, 2020 10:52 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Percent Ionization
Replies: 7
Views: 16

Re: Percent Ionization

Oh ok this makes it a lot easier than the quadratic equation
by Matt Sanruk 2H
Wed Jan 15, 2020 10:43 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Today's lecture
Replies: 4
Views: 24

Re: Today's lecture

Wouldn't pKa give an integer thats less than 7?
by Matt Sanruk 2H
Wed Jan 15, 2020 10:32 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Percent Ionization
Replies: 7
Views: 16

Percent Ionization

So as long as the percent Ionization is less than 5%, we don't have to do the quadratic equation right?
by Matt Sanruk 2H
Wed Jan 15, 2020 10:27 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Today's lecture
Replies: 4
Views: 24

Today's lecture

So as long as we are given the Ka or Kb value, we can find the pH or pOH?
by Matt Sanruk 2H
Fri Jan 10, 2020 12:42 am
Forum: Ideal Gases
Topic: 5G.11
Replies: 6
Views: 21

Re: 5G.11

So the Q shows whether the reaction is forward or reverse when compared to K, right?
by Matt Sanruk 2H
Fri Jan 10, 2020 12:35 am
Forum: Ideal Gases
Topic: PV=nRT equation manipulation
Replies: 12
Views: 55

Re: PV=nRT equation manipulation

Ok I see, but there won't be any problems that give both concentration and pressure for different elements right?
by Matt Sanruk 2H
Wed Jan 08, 2020 9:13 pm
Forum: Ideal Gases
Topic: PV=nRT equation manipulation
Replies: 12
Views: 55

PV=nRT equation manipulation

What was the purpose of changing the equation to equal P or the concentration? Will this be further manipulated when we deal with equilibrium?
by Matt Sanruk 2H
Sun Dec 08, 2019 2:02 am
Forum: Biological Examples
Topic: What specific compounds/ligands do we need to know for the final?
Replies: 7
Views: 73

Re: What specific compounds/ligands do we need to know for the final?

Is cisplatin a chelating ligand or is it a complex compound?
by Matt Sanruk 2H
Thu Dec 05, 2019 11:27 pm
Forum: Identifying Acidic & Basic Salts
Topic: Weak acid and base
Replies: 2
Views: 19

Re: Weak acid and base

So it will pretty much always have one strong base or acid
by Matt Sanruk 2H
Wed Dec 04, 2019 9:34 pm
Forum: DeBroglie Equation
Topic: Early quantum
Replies: 2
Views: 38

Early quantum

Do you guys know any good problems that can help with early quantum such as quantum mechanics question that are good study material for the final?
by Matt Sanruk 2H
Wed Dec 04, 2019 9:32 pm
Forum: Naming
Topic: Naming Help
Replies: 1
Views: 26

Naming Help

Do you guys have any advice for naming compounds with very long formulas, and writing chemical formulas for long names?
by Matt Sanruk 2H
Wed Dec 04, 2019 9:30 pm
Forum: Lewis Acids & Bases
Topic: HF
Replies: 4
Views: 19

Re: HF

but its IMF's are greater in the HF than the others due to higher electronegativity right?
by Matt Sanruk 2H
Wed Dec 04, 2019 9:29 pm
Forum: Identifying Acidic & Basic Salts
Topic: Weak acid and base
Replies: 2
Views: 19

Weak acid and base

What would we do in the situation that both the acid and base are both weak, neither is a strong ion, what would we do for that?
by Matt Sanruk 2H
Mon Dec 02, 2019 3:28 pm
Forum: Identifying Acidic & Basic Salts
Topic: Knowing whether a salt is acidic or basic
Replies: 1
Views: 20

Knowing whether a salt is acidic or basic

Does this depend on whether or not the ion is a strong conjugate acid/base?
by Matt Sanruk 2H
Sun Dec 01, 2019 1:38 am
Forum: Bronsted Acids & Bases
Topic: Bronsted Acid and base
Replies: 8
Views: 36

Re: Bronsted Acid and base

Oh this is a lot more clear thanks
by Matt Sanruk 2H
Fri Nov 29, 2019 11:02 pm
Forum: Bronsted Acids & Bases
Topic: Bronsted Acid and base
Replies: 8
Views: 36

Re: Bronsted Acid and base

How does this differ to the lewis acid and base?
by Matt Sanruk 2H
Fri Nov 29, 2019 11:02 pm
Forum: Lewis Acids & Bases
Topic: Lewis acid and base definition
Replies: 4
Views: 26

Re: Lewis acid and base definition

Wow thanks for the replies guys and the diagram really helps thanks!
by Matt Sanruk 2H
Thu Nov 28, 2019 6:35 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7741
Views: 1059317

Re: Post All Chemistry Jokes Here

clicking remember me when logging in
by Matt Sanruk 2H
Thu Nov 28, 2019 6:21 pm
Forum: *Shrodinger Equation
Topic: Midterm
Replies: 14
Views: 204

Re: Midterm

I believe that he never gave us any homework on the schrodinger equation
by Matt Sanruk 2H
Thu Nov 28, 2019 6:20 pm
Forum: Dipole Moments
Topic: Hydrogen Bonding
Replies: 17
Views: 181

Re: Hydrogen Bonding

And O has two hydrogen bonding sites right?
by Matt Sanruk 2H
Thu Nov 28, 2019 6:18 pm
Forum: Lewis Acids & Bases
Topic: Lewis acid and base definition
Replies: 4
Views: 26

Lewis acid and base definition

Can someone help me out with what a lewis acid and base is?
by Matt Sanruk 2H
Thu Nov 28, 2019 6:17 pm
Forum: Bronsted Acids & Bases
Topic: Bronsted Acid and base
Replies: 8
Views: 36

Bronsted Acid and base

Can someone help clarify the definition of what a bronsted acid and a base is?
by Matt Sanruk 2H
Wed Nov 20, 2019 10:30 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: IMF strength
Replies: 4
Views: 26

Re: IMF strength

so hydrogen bonding trumps all covalent bonds, but ionic trumps all covalent bonds
by Matt Sanruk 2H
Wed Nov 20, 2019 8:14 pm
Forum: Lewis Structures
Topic: HW 2.61
Replies: 1
Views: 27

Re: HW 2.61

I think this is done to keep the formal charge 0
by Matt Sanruk 2H
Wed Nov 20, 2019 8:12 pm
Forum: Hybridization
Topic: Quiz 2 Hybridization Question
Replies: 4
Views: 40

Re: Quiz 2 Hybridization Question

No since that was taught after the sigma pi bond slides
by Matt Sanruk 2H
Wed Nov 20, 2019 8:11 pm
Forum: Dipole Moments
Topic: Hydrogen Bonding
Replies: 17
Views: 181

Re: Hydrogen Bonding

Is there specific work that you would have to show for the dipole moments or just the arrows?
by Matt Sanruk 2H
Wed Nov 20, 2019 7:48 pm
Forum: Ionic & Covalent Bonds
Topic: CO2 and H20
Replies: 4
Views: 56

Re: CO2 and H20

Would the dipole moments cancel out?
by Matt Sanruk 2H
Wed Nov 20, 2019 7:48 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: HCL vs NaCl
Replies: 6
Views: 43

Re: HCL vs NaCl

So all ionic compounds will have higher imf, boiling and freezing points than any covalent molecule, right?
by Matt Sanruk 2H
Wed Nov 20, 2019 7:46 pm
Forum: Dipole Moments
Topic: Hydrogen Bonding
Replies: 17
Views: 181

Re: Hydrogen Bonding

and there would still be dipole moments and dispersion forces on the compound as well right?
by Matt Sanruk 2H
Wed Nov 13, 2019 9:13 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Methane VSEPR
Replies: 7
Views: 44

Re: Methane VSEPR

Oh yeah I see. Theres a complicated 15 minute video on youtube with obscure numbers.
by Matt Sanruk 2H
Wed Nov 13, 2019 3:39 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Answers
Replies: 10
Views: 100

Re: Midterm Answers

That's because you gotta convert it from kg to g
by Matt Sanruk 2H
Wed Nov 13, 2019 3:39 pm
Forum: *Shrodinger Equation
Topic: Midterm
Replies: 14
Views: 204

Re: Midterm

Honestly besides doing well on the final, I just gotta hope that curve at the end is really generous for the overall grade.
by Matt Sanruk 2H
Wed Nov 13, 2019 3:37 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Shape
Replies: 8
Views: 37

Re: Shape

But they will affect the shape, right? It's just that he will cover that in a later discussion right?
by Matt Sanruk 2H
Wed Nov 13, 2019 3:25 pm
Forum: *Shrodinger Equation
Topic: Midterm
Replies: 14
Views: 204

Re: Midterm

I'm going to need to do well on those tests after that midterm!
by Matt Sanruk 2H
Wed Nov 13, 2019 3:24 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Shape
Replies: 8
Views: 37

Re: Shape

Ah ok I remember learning something similar to this in high school and was described with AXE, right?
by Matt Sanruk 2H
Wed Nov 13, 2019 3:23 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Answers
Replies: 10
Views: 100

Re: Midterm Answers

These show detailed, step by step solutions?
by Matt Sanruk 2H
Wed Nov 13, 2019 3:21 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Methane VSEPR
Replies: 7
Views: 44

Re: Methane VSEPR

Where did they get the number 109.5 from?
by Matt Sanruk 2H
Wed Nov 13, 2019 3:17 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Shape
Replies: 8
Views: 37

Shape

So regarding today's lecture the topics are only when there are no lone pairs this is correct?
by Matt Sanruk 2H
Tue Nov 05, 2019 2:23 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Midterm review
Replies: 5
Views: 60

Re: Midterm review

No need for luck when we have the power of studying! I will for sure write notes for myself on the equation sheets to see which equation goes with which formula. We will all do well!!!!
by Matt Sanruk 2H
Tue Nov 05, 2019 2:20 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Midterm review
Replies: 5
Views: 60

Re: Midterm review

Oh yes! A notecard would be a great idea and I will greatly consider this as a study tool thanks!
by Matt Sanruk 2H
Tue Nov 05, 2019 2:17 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Midterm review
Replies: 5
Views: 60

Midterm review

Hey guys as I am studying for this, what are some good ways to remember the formulas and know when to utilize certain formulas. I am grinding for this midterm much like most of you. Thanks!
by Matt Sanruk 2H
Sun Nov 03, 2019 2:13 pm
Forum: Dipole Moments
Topic: Dipole moments
Replies: 5
Views: 41

Re: Dipole moments

A molecule will always be covalent because it is covalently bonded. The dipole moment determines whether the covalent bond has ionic or covalent character because of the charge difference. If there is a dipole moment, it is a polar covalent bond, and as a result of the partial positive and partial ...
by Matt Sanruk 2H
Sun Nov 03, 2019 1:45 pm
Forum: Dipole Moments
Topic: Dipole moments
Replies: 5
Views: 41

Dipole moments

So the dipole moments translate whether or not the molecule is covalent, ionic, or polar?
by Matt Sanruk 2H
Wed Oct 30, 2019 11:33 pm
Forum: Octet Exceptions
Topic: Radicals
Replies: 5
Views: 31

Re: Radicals

Ok I see, but it is similar to an anion in the sense that it wants to become an octet or is this different?
by Matt Sanruk 2H
Wed Oct 30, 2019 10:38 pm
Forum: Octet Exceptions
Topic: Radicals
Replies: 5
Views: 31

Re: Radicals

Also how would you identify if a species is a radical or not?
by Matt Sanruk 2H
Wed Oct 30, 2019 10:21 pm
Forum: Octet Exceptions
Topic: Radicals
Replies: 5
Views: 31

Radicals

Today he introduced radicals. Would these be considered as ions or particles that are similar to an ion or would it be a molecule?
by Matt Sanruk 2H
Sun Oct 27, 2019 11:13 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Elements having octets
Replies: 4
Views: 34

Re: Elements having octets

Okay, so CNOF are always octets since they do not have a d orbital, but those that have d orbitals (periods 3+) can have more if their formal charge allows for it?
by Matt Sanruk 2H
Sun Oct 27, 2019 10:15 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Elements having octets
Replies: 4
Views: 34

Elements having octets

I am still slightly confused on how some elements can over an octet, while we also automatically assume some elements have octets no matter what. Can someone clarify for me?
by Matt Sanruk 2H
Wed Oct 23, 2019 11:01 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: ground state
Replies: 6
Views: 52

Re: ground state

Ah I see so this is very similar to the high school way of doing electron configuration, but with a fancier name. Is there any difference from high school chemistry that I should know?
by Matt Sanruk 2H
Wed Oct 23, 2019 10:20 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: ground state
Replies: 6
Views: 52

ground state

I am still confused on how to do electron configuration for atoms in the ground state.
by Matt Sanruk 2H
Sat Oct 19, 2019 10:02 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Resources
Replies: 2
Views: 40

Resources

Hey guys are the resources sent via email all free resources?
by Matt Sanruk 2H
Wed Oct 16, 2019 12:08 am
Forum: Einstein Equation
Topic: Equation use
Replies: 6
Views: 42

Equation use

How would the question be worded in order to tell us to use this equation?
by Matt Sanruk 2H
Mon Oct 14, 2019 10:48 pm
Forum: Photoelectric Effect
Topic: Week 3 Homework [ENDORSED]
Replies: 2
Views: 41

Week 3 Homework [ENDORSED]

For this week we would do problems out of the quantum mechanics section?
by Matt Sanruk 2H
Mon Oct 14, 2019 7:59 pm
Forum: *Shrodinger Equation
Topic: Midterm
Replies: 14
Views: 204

Re: Midterm

Ah, I may have misread 2 midterms with 2 tests, thank you everyone!
by Matt Sanruk 2H
Mon Oct 14, 2019 6:22 pm
Forum: *Shrodinger Equation
Topic: Midterm
Replies: 14
Views: 204

Re: Midterm

Is there a second midterm for this class?
by Matt Sanruk 2H
Mon Oct 14, 2019 3:47 pm
Forum: *Shrodinger Equation
Topic: Midterm
Replies: 14
Views: 204

Midterm

When is our first midterm for this class?
by Matt Sanruk 2H
Wed Oct 09, 2019 12:19 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7741
Views: 1059317

Re: Post All Chemistry Jokes Here

Iron Man is a man, but he is also FeMale
by Matt Sanruk 2H
Wed Oct 09, 2019 12:12 am
Forum: General Science Questions
Topic: Test Question
Replies: 8
Views: 115

Re: Test Question

Any numerical value/constants will be given to us, correct?
by Matt Sanruk 2H
Wed Oct 09, 2019 12:11 am
Forum: Trends in The Periodic Table
Topic: Chemistry Community
Replies: 8
Views: 77

Re: Chemistry Community

Is there any proof of how much you posted in a week or is there an algorithm of how many posts were made at the end of each week? Cause it just shows how many posts total
by Matt Sanruk 2H
Thu Oct 03, 2019 11:08 pm
Forum: Significant Figures
Topic: When to round for sig figs?
Replies: 12
Views: 88

Re: When to round for sig figs?

For calculations I would just keep the entire number on the calculator but round the numbers when I write them down. Just make sure that the final answer is in sig figs. This seems like it makes the most sense.
by Matt Sanruk 2H
Tue Oct 01, 2019 10:56 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7741
Views: 1059317

Re: Post All Chemistry Jokes Here

It's so hard coming up with a good joke since all them argon.
by Matt Sanruk 2H
Tue Oct 01, 2019 12:32 am
Forum: Significant Figures
Topic: Significant Figures usage confusion
Replies: 6
Views: 66

Re: Significant Figures usage confusion

If I have any further inquiries I can depend on you!
by Matt Sanruk 2H
Tue Oct 01, 2019 12:12 am
Forum: Significant Figures
Topic: Significant Figures usage confusion
Replies: 6
Views: 66

Re: Significant Figures usage confusion

Ahhh I see thats how it works! Thank you very much Jialun Chen!! I will for sure utilize this in my problems thank you!
by Matt Sanruk 2H
Tue Oct 01, 2019 12:01 am
Forum: Significant Figures
Topic: Significant Figures usage confusion
Replies: 6
Views: 66

Re: Significant Figures usage confusion

Would this also apply to adding and subtracting?
by Matt Sanruk 2H
Mon Sep 30, 2019 11:54 pm
Forum: Significant Figures
Topic: Significant Figures usage confusion
Replies: 6
Views: 66

Significant Figures usage confusion

How do I know how many sig figs I should be using?

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